Georges Ladoux was an army captain and the head of French counter-espionage

Counter-Espionage

-Cast:* Warren William as Michael Lanyard* Eric Blore as Jamison* Hillary Brooke as Pamela Hart* Thurston Hall as Insp. Crane* Fred Kelsey as Detective Wesley Dickens* Forrest Tucker as Anton Schugg* Matthew Boulton as Inspector J...

 during World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

, described as "a plump, square-faced man given to smoking a pipe and slicking his dark hair back with shiny oils." He transferred from counter-espionage to the Deuxième Bureau in February 1917. He was responsible for recruiting Mata Hari

Mata Hari

Mata Hari was the stage name of Margaretha Geertruida "M'greet" Zelle , a Dutch exotic dancer, courtesan, and accused spy who was executed by firing squad in France under charges of espionage for Germany during World War I.-Early life:Margaretha Geertruida Zelle was born in Leeuwarden, Friesland,...

 as a French spy. Ladoux was later arrested for being a double agent

Double agent

A double agent, commonly abbreviated referral of double secret agent, is a counterintelligence term used to designate an employee of a secret service or organization, whose primary aim is to spy on the target organization, but who in fact is a member of that same target organization oneself. They...

himself. He was later cleared of all charges.

References:
http://www.trutv.com/library/crime/terrorists_spies/spies/hari/6.html